Preparation of carbon nanotube by rotary CVD on Ni nano-particle precipitated cBN using nickelocene as a precursor

Ni nano-particles were deposited on hexagonal boron nitride (hBN) and cubic boron nitride (cBN) powders by rotary chemical vapor deposition (RCVD) using nickelocene as a precursor. Ni nano-particles precipitated on hBN and cBN powders were about 20 nm and 10 to 50 nm in diameter, respectively. Carbon nanotubes (CNTs) were grown from relatively large Ni particles about 50 nm in diameter on cBN powder, whereas carbon layers surrounded Ni nano-particles on the surface of hBN powders.